Non-Attainment Area
Encyclopedia
In United States environmental law, a nonattainment area is an area considered to have air quality worse than the National Ambient Air Quality Standards
as defined in the Clean Air Act Amendments of 1970 (P.L. 91-604, Sec. 109). Nonattainment areas must have and implement a plan to meet the standard, or risk losing some forms of federal financial assistance. An area may be a nonattainment area for one pollutant and an attainment area for others.
National Ambient Air Quality Standards
The National Ambient Air Quality Standards are standards established by the United States Environmental Protection Agency under authority of the Clean Air Act that apply for outdoor air throughout the country...
as defined in the Clean Air Act Amendments of 1970 (P.L. 91-604, Sec. 109). Nonattainment areas must have and implement a plan to meet the standard, or risk losing some forms of federal financial assistance. An area may be a nonattainment area for one pollutant and an attainment area for others.